{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "8bfe1e6a",
   "metadata": {},
   "source": [
    "----------\n",
    "* 时间：2022/10/24 week10\n",
    "* 记录人：小紫\n",
    "----------"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "62a5e823",
   "metadata": {},
   "source": [
    "# 本周学习目标\n",
    "> 1. while循环\n",
    "> 2. 购物车实践"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e9532531",
   "metadata": {},
   "source": [
    "## 1.while循环\n",
    "* 回顾：for循环：for+range()可以指定循环的次数--->关于网页URL队列的抓取实践\n",
    "* while循环：当某种条件成立时，停止循环\n",
    "* while True:无限循环/死循环"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "d8003910",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
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      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙\n",
      "你是风儿我是沙"
     ]
    },
    {
     "ename": "KeyboardInterrupt",
     "evalue": "",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
      "Input \u001b[1;32mIn [3]\u001b[0m, in \u001b[0;36m<cell line: 2>\u001b[1;34m()\u001b[0m\n\u001b[0;32m      1\u001b[0m \u001b[38;5;28;01mwhile\u001b[39;00m \u001b[38;5;28;01mTrue\u001b[39;00m:\n\u001b[1;32m----> 2\u001b[0m     \u001b[38;5;28;43mprint\u001b[39;49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43m你是风儿我是沙\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\ipykernel\\iostream.py:531\u001b[0m, in \u001b[0;36mOutStream.write\u001b[1;34m(self, string)\u001b[0m\n\u001b[0;32m    529\u001b[0m is_child \u001b[38;5;241m=\u001b[39m (\u001b[38;5;129;01mnot\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_is_master_process())\n\u001b[0;32m    530\u001b[0m \u001b[38;5;66;03m# only touch the buffer in the IO thread to avoid races\u001b[39;00m\n\u001b[1;32m--> 531\u001b[0m \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mpub_thread\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mschedule\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;28;43;01mlambda\u001b[39;49;00m\u001b[43m:\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_buffer\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mwrite\u001b[49m\u001b[43m(\u001b[49m\u001b[43mstring\u001b[49m\u001b[43m)\u001b[49m\u001b[43m)\u001b[49m\n\u001b[0;32m    532\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m is_child:\n\u001b[0;32m    533\u001b[0m     \u001b[38;5;66;03m# mp.Pool cannot be trusted to flush promptly (or ever),\u001b[39;00m\n\u001b[0;32m    534\u001b[0m     \u001b[38;5;66;03m# and this helps.\u001b[39;00m\n\u001b[0;32m    535\u001b[0m     \u001b[38;5;28;01mif\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_subprocess_flush_pending:\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\ipykernel\\iostream.py:216\u001b[0m, in \u001b[0;36mIOPubThread.schedule\u001b[1;34m(self, f)\u001b[0m\n\u001b[0;32m    214\u001b[0m     \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_events\u001b[38;5;241m.\u001b[39mappend(f)\n\u001b[0;32m    215\u001b[0m     \u001b[38;5;66;03m# wake event thread (message content is ignored)\u001b[39;00m\n\u001b[1;32m--> 216\u001b[0m     \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_event_pipe\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43msend\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;124;43mb\u001b[39;49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[43m)\u001b[49m\n\u001b[0;32m    217\u001b[0m \u001b[38;5;28;01melse\u001b[39;00m:\n\u001b[0;32m    218\u001b[0m     f()\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\zmq\\sugar\\socket.py:547\u001b[0m, in \u001b[0;36mSocket.send\u001b[1;34m(self, data, flags, copy, track, routing_id, group)\u001b[0m\n\u001b[0;32m    540\u001b[0m         data \u001b[38;5;241m=\u001b[39m zmq\u001b[38;5;241m.\u001b[39mFrame(\n\u001b[0;32m    541\u001b[0m             data,\n\u001b[0;32m    542\u001b[0m             track\u001b[38;5;241m=\u001b[39mtrack,\n\u001b[0;32m    543\u001b[0m             copy\u001b[38;5;241m=\u001b[39mcopy \u001b[38;5;129;01mor\u001b[39;00m \u001b[38;5;28;01mNone\u001b[39;00m,\n\u001b[0;32m    544\u001b[0m             copy_threshold\u001b[38;5;241m=\u001b[39m\u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mcopy_threshold,\n\u001b[0;32m    545\u001b[0m         )\n\u001b[0;32m    546\u001b[0m     data\u001b[38;5;241m.\u001b[39mgroup \u001b[38;5;241m=\u001b[39m group\n\u001b[1;32m--> 547\u001b[0m \u001b[38;5;28;01mreturn\u001b[39;00m \u001b[38;5;28;43msuper\u001b[39;49m\u001b[43m(\u001b[49m\u001b[43mSocket\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[43m)\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43msend\u001b[49m\u001b[43m(\u001b[49m\u001b[43mdata\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mflags\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[43mflags\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mcopy\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[43mcopy\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mtrack\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[43mtrack\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[1;32mzmq\\backend\\cython\\socket.pyx:718\u001b[0m, in \u001b[0;36mzmq.backend.cython.socket.Socket.send\u001b[1;34m()\u001b[0m\n",
      "File \u001b[1;32mzmq\\backend\\cython\\socket.pyx:765\u001b[0m, in \u001b[0;36mzmq.backend.cython.socket.Socket.send\u001b[1;34m()\u001b[0m\n",
      "File \u001b[1;32mzmq\\backend\\cython\\socket.pyx:242\u001b[0m, in \u001b[0;36mzmq.backend.cython.socket._send_copy\u001b[1;34m()\u001b[0m\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\zmq\\backend\\cython\\checkrc.pxd:13\u001b[0m, in \u001b[0;36mzmq.backend.cython.checkrc._check_rc\u001b[1;34m()\u001b[0m\n",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m: "
     ]
    }
   ],
   "source": [
    "while True:\n",
    "    print(\"你是风儿我是沙\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bd337b71",
   "metadata": {},
   "source": [
    "> 这样就会无限循环"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b349a9bc",
   "metadata": {},
   "source": [
    "* 指定次数"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "5f21b8da",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "我是沙 0\n",
      "我是沙 1\n",
      "我是沙 2\n",
      "我是沙 3\n",
      "我是沙 4\n",
      "我是沙 5\n",
      "我是沙 6\n",
      "我是沙 7\n",
      "我是沙 8\n",
      "我是沙 9\n"
     ]
    }
   ],
   "source": [
    "count = 0\n",
    "while True:\n",
    "    print(\"我是沙\",count)\n",
    "    count = count+1\n",
    "    if count == 10:\n",
    "        break"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "5a20b502",
   "metadata": {},
   "outputs": [],
   "source": [
    "## 2. while Ture循环，可以让用户重复输入"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "cef2ab36",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (4294242983.py, line 4)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  Input \u001b[1;32mIn [9]\u001b[1;36m\u001b[0m\n\u001b[1;33m    if user01 = username and password01 == password:\u001b[0m\n\u001b[1;37m              ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "while Ture:\n",
    "    username = input(\"账号：\")\n",
    "    password = input(\"密码：\")\n",
    "    if user01 = username and password01 == password:\n",
    "        print(\"登陆成功，欢迎\"+ user01)\n",
    "        break\n",
    "    count = count+1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "f9b46a42",
   "metadata": {},
   "outputs": [],
   "source": [
    "## 2.购物车项目\n",
    "> 1. 运行程序后，让用户输入支付宝余额\n",
    "> 2. 打印我们的商品列表给用户\n",
    "> 3. \n",
    "> 4. "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "dbafbaa6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['柠檬水', '蜜桃四季春', '芒果圣代', '芋圆葡萄']\n"
     ]
    },
    {
     "ename": "KeyboardInterrupt",
     "evalue": "Interrupted by user",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
      "Input \u001b[1;32mIn [13]\u001b[0m, in \u001b[0;36m<cell line: 15>\u001b[1;34m()\u001b[0m\n\u001b[0;32m      7\u001b[0m product_prace_list \u001b[38;5;241m=\u001b[39m [\n\u001b[0;32m      8\u001b[0m     \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m6\u001b[39m\u001b[38;5;124m\"\u001b[39m,\n\u001b[0;32m      9\u001b[0m     \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m10\u001b[39m\u001b[38;5;124m\"\u001b[39m,\n\u001b[0;32m     10\u001b[0m     \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m12\u001b[39m\u001b[38;5;124m\"\u001b[39m,\n\u001b[0;32m     11\u001b[0m     \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m8\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[0;32m     12\u001b[0m ]\n\u001b[0;32m     13\u001b[0m \u001b[38;5;28mprint\u001b[39m(product_list)\n\u001b[1;32m---> 15\u001b[0m Alipay \u001b[38;5;241m=\u001b[39m \u001b[38;5;28;43minput\u001b[39;49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43m请输入余额：\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\ipykernel\\kernelbase.py:1075\u001b[0m, in \u001b[0;36mKernel.raw_input\u001b[1;34m(self, prompt)\u001b[0m\n\u001b[0;32m   1071\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m \u001b[38;5;129;01mnot\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_allow_stdin:\n\u001b[0;32m   1072\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m StdinNotImplementedError(\n\u001b[0;32m   1073\u001b[0m         \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mraw_input was called, but this frontend does not support input requests.\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[0;32m   1074\u001b[0m     )\n\u001b[1;32m-> 1075\u001b[0m \u001b[38;5;28;01mreturn\u001b[39;00m \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_input_request\u001b[49m\u001b[43m(\u001b[49m\n\u001b[0;32m   1076\u001b[0m \u001b[43m    \u001b[49m\u001b[38;5;28;43mstr\u001b[39;49m\u001b[43m(\u001b[49m\u001b[43mprompt\u001b[49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\n\u001b[0;32m   1077\u001b[0m \u001b[43m    \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_parent_ident\u001b[49m\u001b[43m[\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mshell\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m]\u001b[49m\u001b[43m,\u001b[49m\n\u001b[0;32m   1078\u001b[0m \u001b[43m    \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mget_parent\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mshell\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\n\u001b[0;32m   1079\u001b[0m \u001b[43m    \u001b[49m\u001b[43mpassword\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[38;5;28;43;01mFalse\u001b[39;49;00m\u001b[43m,\u001b[49m\n\u001b[0;32m   1080\u001b[0m \u001b[43m\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\ipykernel\\kernelbase.py:1120\u001b[0m, in \u001b[0;36mKernel._input_request\u001b[1;34m(self, prompt, ident, parent, password)\u001b[0m\n\u001b[0;32m   1117\u001b[0m             \u001b[38;5;28;01mbreak\u001b[39;00m\n\u001b[0;32m   1118\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m \u001b[38;5;167;01mKeyboardInterrupt\u001b[39;00m:\n\u001b[0;32m   1119\u001b[0m     \u001b[38;5;66;03m# re-raise KeyboardInterrupt, to truncate traceback\u001b[39;00m\n\u001b[1;32m-> 1120\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m \u001b[38;5;167;01mKeyboardInterrupt\u001b[39;00m(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mInterrupted by user\u001b[39m\u001b[38;5;124m\"\u001b[39m) \u001b[38;5;28;01mfrom\u001b[39;00m \u001b[38;5;28mNone\u001b[39m\n\u001b[0;32m   1121\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m \u001b[38;5;167;01mException\u001b[39;00m:\n\u001b[0;32m   1122\u001b[0m     \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mlog\u001b[38;5;241m.\u001b[39mwarning(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mInvalid Message:\u001b[39m\u001b[38;5;124m\"\u001b[39m, exc_info\u001b[38;5;241m=\u001b[39m\u001b[38;5;28;01mTrue\u001b[39;00m)\n",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m: Interrupted by user"
     ]
    }
   ],
   "source": [
    "product_list = [\n",
    "    \"柠檬水\",\n",
    "    \"蜜桃四季春\",\n",
    "    \"芒果圣代\",\n",
    "    \"芋圆葡萄\"\n",
    "]\n",
    "product_prace_list = [\n",
    "    \"6\",\n",
    "    \"10\",\n",
    "    \"12\",\n",
    "    \"8\"\n",
    "]\n",
    "print(product_list)\n",
    "\n",
    "Alipay = input(\"请输入余额：\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "1a882b2c",
   "metadata": {},
   "source": [
    "* 升级版"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "id": "c6d9ad47",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "---------商品列表---------\n",
      "蜜桃四季春 6元\n",
      "杨枝甘露 10元\n",
      "草莓摇摇奶昔 8元\n",
      "柠檬水 4元\n"
     ]
    }
   ],
   "source": [
    "good_list = [\n",
    "    [\"蜜桃四季春\",6],\n",
    "    [\"杨枝甘露\",10],\n",
    "    [\"草莓摇摇奶昔\",8],\n",
    "    [\"柠檬水\",4],\n",
    "    [\"黄桃果霸\",8],\n",
    "]\n",
    "print(\"---------商品列表---------\")\n",
    "print(good_list[0][0],str(good_list[0][1])+\"元\")\n",
    "print(good_list[1][0],str(good_list[1][1])+\"元\")\n",
    "print(good_list[2][0],str(good_list[2][1])+\"元\")\n",
    "print(good_list[3][0],str(good_list[3][1])+\"元\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "id": "9eb84d73",
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (2671115543.py, line 9)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  Input \u001b[1;32mIn [44]\u001b[1;36m\u001b[0m\n\u001b[1;33m    print(good_list[1][0],str(good_list[1][1]+\"元\")\u001b[0m\n\u001b[1;37m    ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "good_list = [\n",
    "    [\"柠檬水\",4],\n",
    "    [\"蜜桃四季春\",5],\n",
    "    [\"芒果圣代\",5],\n",
    "    [\"芋圆葡萄\",8],\n",
    "]\n",
    "print(\"---------商品列表---------\")\n",
    "print(good_list[0][0],str(good_list[0][1]+\"元\")\n",
    "print(good_list[1][0],str(good_list[1][1]+\"元\")\n",
    "print(good_list[2][0],str(good_list[2][1]+\"元\")\n",
    "print(good_list[3][0],str(good_list[3][1]+\"元\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "24feb4b1",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (3546230091.py, line 17)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  Input \u001b[1;32mIn [45]\u001b[1;36m\u001b[0m\n\u001b[1;33m    user_choice = input(\"请输入商品编号:\")\u001b[0m\n\u001b[1;37m    ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "product_list = [\n",
    "    [\"柠檬水\",4],\n",
    "    [\"蜜桃四季春\",5],\n",
    "    [\"芒果圣代\",5],\n",
    "    [\"芋圆葡萄\",8]\n",
    "]\n",
    "shopping_car =[]\n",
    "AliPay = int(input(\"请输入余额\"))\n",
    "while True:\n",
    "    print(\"---------商品列表---------\")\n",
    "    for i in range(4):\n",
    "        print(\"商品序号：\",\"(\"+str(i)+\"):\",product_list[i][0],str(product_list[i][1]+\"元\")\n",
    "          \n",
    "          \n",
    "    user_choice = input(\"请输入商品编号:\")\n",
    "    # 情景1：用户正在购买，输入商品编号\n",
    "    if user_choice.isdigit():\n",
    "        # 情景一：余额大于商品价格\n",
    "        if AliPay >= product_list[int(user_choice)][1]:\n",
    "            AliPay = AliPay - product_list[int(user_choice)][1]\n",
    "            shopping_car.append(product_list[int(user_choice)])\n",
    "            print(\"商品购买成功，正在制作中...您的余额还有%s元\"%(AliPay))\n",
    "        #情景二：余额小于商品价格\n",
    "        else:\n",
    "            print(\"您的余额不足，请更换支付方式\")\n",
    "    # 情景2：用户输入退出，结束购买\n",
    "    elif user_choice == \"q\":\n",
    "        print(\"您已购买的商品：\"shopping_car)\n",
    "        print(\"您的余额还有%s，欢迎下次光临\"%(AliPay))\n",
    "        break"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "3bfce9b5",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "请输入余额:100\n",
      "------商品列表------\n",
      "0 蜜桃四季春 6元\n",
      "1 杨枝甘露 10元\n",
      "2 草莓摇摇奶昔 8元\n",
      "3 柠檬水 4元\n",
      "4 黄桃果霸 8元\n"
     ]
    },
    {
     "ename": "KeyboardInterrupt",
     "evalue": "Interrupted by user",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
      "Input \u001b[1;32mIn [29]\u001b[0m, in \u001b[0;36m<cell line: 15>\u001b[1;34m()\u001b[0m\n\u001b[0;32m     17\u001b[0m     \u001b[38;5;28mprint\u001b[39m(i,good_list[i][\u001b[38;5;241m0\u001b[39m],\u001b[38;5;28mstr\u001b[39m(good_list[i][\u001b[38;5;241m1\u001b[39m])\u001b[38;5;241m+\u001b[39m\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m元\u001b[39m\u001b[38;5;124m\"\u001b[39m)\n\u001b[0;32m     18\u001b[0m     \u001b[38;5;66;03m#print(good_list[0][0],good_list[0][1])\u001b[39;00m\n\u001b[0;32m     19\u001b[0m     \u001b[38;5;66;03m#print(good_list[1][0],good_list[1][1])\u001b[39;00m\n\u001b[0;32m     20\u001b[0m     \u001b[38;5;66;03m#print(good_list[2][0],good_list[2][1])\u001b[39;00m\n\u001b[0;32m     21\u001b[0m     \u001b[38;5;66;03m#print(good_list[3][0],good_list[3][1])\u001b[39;00m\n\u001b[0;32m     22\u001b[0m     \u001b[38;5;66;03m#print(good_list[4][0],good_list[4][1])\u001b[39;00m\n\u001b[1;32m---> 24\u001b[0m user_choice \u001b[38;5;241m=\u001b[39m \u001b[38;5;28mint\u001b[39m(\u001b[38;5;28;43minput\u001b[39;49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43m请输入商品编号:\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m)\n\u001b[0;32m     26\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m user_choice\u001b[38;5;241m.\u001b[39misdigit() \u001b[38;5;129;01mand\u001b[39;00m \u001b[38;5;28mint\u001b[39m(user_choice)\u001b[38;5;241m<\u001b[39m\u001b[38;5;28mlen\u001b[39m(good_list) \u001b[38;5;129;01mand\u001b[39;00m \u001b[38;5;28mint\u001b[39m(user_choice)\u001b[38;5;241m>\u001b[39m\u001b[38;5;241m=\u001b[39m\u001b[38;5;241m0\u001b[39m:\n\u001b[0;32m     27\u001b[0m     user_choice \u001b[38;5;241m=\u001b[39m \u001b[38;5;28mint\u001b[39m(user_choice)\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\ipykernel\\kernelbase.py:1075\u001b[0m, in \u001b[0;36mKernel.raw_input\u001b[1;34m(self, prompt)\u001b[0m\n\u001b[0;32m   1071\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m \u001b[38;5;129;01mnot\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_allow_stdin:\n\u001b[0;32m   1072\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m StdinNotImplementedError(\n\u001b[0;32m   1073\u001b[0m         \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mraw_input was called, but this frontend does not support input requests.\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[0;32m   1074\u001b[0m     )\n\u001b[1;32m-> 1075\u001b[0m \u001b[38;5;28;01mreturn\u001b[39;00m \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_input_request\u001b[49m\u001b[43m(\u001b[49m\n\u001b[0;32m   1076\u001b[0m \u001b[43m    \u001b[49m\u001b[38;5;28;43mstr\u001b[39;49m\u001b[43m(\u001b[49m\u001b[43mprompt\u001b[49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\n\u001b[0;32m   1077\u001b[0m \u001b[43m    \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_parent_ident\u001b[49m\u001b[43m[\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mshell\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m]\u001b[49m\u001b[43m,\u001b[49m\n\u001b[0;32m   1078\u001b[0m \u001b[43m    \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mget_parent\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mshell\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\n\u001b[0;32m   1079\u001b[0m \u001b[43m    \u001b[49m\u001b[43mpassword\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[38;5;28;43;01mFalse\u001b[39;49;00m\u001b[43m,\u001b[49m\n\u001b[0;32m   1080\u001b[0m \u001b[43m\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[1;32mD:\\Users\\zoulr\\anaconda3\\lib\\site-packages\\ipykernel\\kernelbase.py:1120\u001b[0m, in \u001b[0;36mKernel._input_request\u001b[1;34m(self, prompt, ident, parent, password)\u001b[0m\n\u001b[0;32m   1117\u001b[0m             \u001b[38;5;28;01mbreak\u001b[39;00m\n\u001b[0;32m   1118\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m \u001b[38;5;167;01mKeyboardInterrupt\u001b[39;00m:\n\u001b[0;32m   1119\u001b[0m     \u001b[38;5;66;03m# re-raise KeyboardInterrupt, to truncate traceback\u001b[39;00m\n\u001b[1;32m-> 1120\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m \u001b[38;5;167;01mKeyboardInterrupt\u001b[39;00m(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mInterrupted by user\u001b[39m\u001b[38;5;124m\"\u001b[39m) \u001b[38;5;28;01mfrom\u001b[39;00m \u001b[38;5;28mNone\u001b[39m\n\u001b[0;32m   1121\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m \u001b[38;5;167;01mException\u001b[39;00m:\n\u001b[0;32m   1122\u001b[0m     \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mlog\u001b[38;5;241m.\u001b[39mwarning(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mInvalid Message:\u001b[39m\u001b[38;5;124m\"\u001b[39m, exc_info\u001b[38;5;241m=\u001b[39m\u001b[38;5;28;01mTrue\u001b[39;00m)\n",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m: Interrupted by user"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "请输入商品编号:100\n"
     ]
    }
   ],
   "source": [
    "# 1.运行程序后，让用户输入支付宝余额，然后打印我们的商品列表给用户。\n",
    "good_list = [\n",
    "    [\"蜜桃四季春\",6],\n",
    "    [\"杨枝甘露\",10],\n",
    "    [\"草莓摇摇奶昔\",8],\n",
    "    [\"柠檬水\",4],\n",
    "    [\"黄桃果霸\",8],\n",
    "]\n",
    "# 数据存放，列表的增加（append）\n",
    "shopping_list = []\n",
    "\n",
    "\n",
    "AliPay = int(input(\"请输入余额:\"))\n",
    "\n",
    "while True:\n",
    "    print(\"------商品列表------\")\n",
    "    for i in range(5):\n",
    "        print(i,good_list[i][0],str(good_list[i][1])+\"元\")\n",
    "        #print(good_list[0][0],good_list[0][1])\n",
    "        #print(good_list[1][0],good_list[1][1])\n",
    "        #print(good_list[2][0],good_list[2][1])\n",
    "        #print(good_list[3][0],good_list[3][1])\n",
    "        #print(good_list[4][0],good_list[4][1])\n",
    "\n",
    "    user_choice = int(input(\"请输入商品编号:\"))\n",
    "    \n",
    "    if user_choice.isdigit() and int(user_choice)<len(good_list) and int(user_choice)>=0:\n",
    "        user_choice = int(user_choice)\n",
    "        if AliPay > good_list[user_choice][1]:\n",
    "            # 余额足够\n",
    "            AliPay = AliPay - good_list[user_choice][1] # 更新余额\n",
    "            shopping_list.append(good_list[user_choice])\n",
    "            print(\"下单成功，请10分钟后取餐......您的余额还有：%s元\"%(AliPay))\n",
    "        else:\n",
    "            # 余额不够\n",
    "            print(\"余额不足\"+str(good_list[user_choice][1])+\"元，请更换支付方式\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "f99012b2",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "961c9a61",
   "metadata": {},
   "outputs": [],
   "source": [
    "https://pyecharts"
   ]
  }
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